Prime - The final boss was hard, I didn't think the rest was too hard
Prime2 - Don't really remember having any real problems, but I'm thinking the final boss was hard
Prime3 - Played on Veteran, the bosses gave me some trouble, but overall, not too bad.
Now, I died pretty much on every boss in every game, and the final bosses usually gave me problems. However, I would say they are medium-hard games. They sure weren't frustratingly hard games that is for sure. I never wanted to quit because of the difficulty.








